Lift pump



T. BABIN Feb. 18, 1930.

LIFT PUMP Filed July 26, 1927 Patented Feb. 18, 1930 UNITED STATESPATENT LIFT PUMP Application filed July 26,

The invention relates to lift pumps and has for its objectto provide adevice of this character comprising a cylindrical casing in which isslidably mounted a piston carried by a rod, and which piston comprises apiston rod bent at its lower end to form a horizontally disposed loop,and on which loop the piston is disposed end limited in itsdownwardmovement, and to loosely mount said piston on the piston rodwhereby the piston may tilt upwardly during the downward strokes andwill positively seat on the loop during the upward strokes.

A further object is to make the lower end 5 of the pump casingdownwardly inclined in relation to the axis of the casing whereby whenthe casing rests on the bottom of a receptacle or other object, watermay easily enter the casing. Also to provide the lower end of the casingwith a valve seat, with which a pivoted valve within the casingcooperates, whereby upon an upward movement of the piston, water will besucked into the casing, and upon a downward movement of the piston waterwill be prevented from being forced out of the casing.

A further object is to provide the upper end of the casing above thedischarge spout with a transversely disposed U-shaped member extendingthrough the casing and between the arms of which the piston rod isslidably mounted and guided.

With the above and other objects in view the invention resides in thecombination and arrangement of parts as hereinafter set forth, shown inthe drawing, described and claimed, it being understood that changes inthe precise embodiment of the invention may be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawing:

Figure 1 is a side elevation of the pump.

Figure 2 is a longitudinal sectional view through the pump.

Figure 3 is a perspective view of the piston and piston rod.

Figure 4 is a top plan view of the pump.

Referring to the drawing the numeral 1 designates the elongatedcylindrical pump casing, the upper end 2 of which is preferably 1927.Serial No. 208,509.

flared and is provided with an outwardly extending discharge spout 3,through which water is discharged during the pumping operation. Disposedwithin the casing 1 isa piston 4 preferably formed from metal, and whichpiston has one of its sides bulged-up wardly at 5 and provided with aradially disposed elongated aperture 6, through which the piston 'rod 7extends. The lower end of the piston rod 7 terminates in a horizontallydisposed loop 8, on which the piston 4 seats during the upward movementof said piston and piston rod, during a pumping operation. It will benoted that by providing the elongated aperture 6 that during thedownward movement of the piston, said piston may tilt upwardly for aconsiderable distance, thereby preventing the compression of water belowthe piston and above the hinged valve 9, and at the same time allowsrelatively large particles of foreign matter to pass through the pump toa position above the piston rod. Upon the upward movement of the pistonrod the water is lifted above the piston and discharged through thedisfrom damage at all times, and is positioned where it can be easilycleaned. The piston rod 7 is preferably provided with an enlargement 12above the piston 4 for limiting any upward movement of the piston andextends upwardly and terminates in a handle member 13 above the pumpcasing as a whole where it can be easily grasped by the periphery of theportion 2 of the casing,

therefore it will be seen that the guide may be easily and quicklyplaced in position or removed therefrom and the guide can be formed '7from relatively heavy yvire, thereby addi tionally cheapening" theconstruction of the device. p l The invention having been set forth Whatis claimed as new and useful i'sz' The combination in a lift pumpcomprising a casing, a flap valve in the lower-"endof said casing, apiston sl idablymountedgin said casing, a piston rod carried by saidpiston and extending upwardly and terminating above the casing, of aU-shaped guide for said piston rod, said guide extending through thecasing adjacent its upper end, said guide having its arms extendingtransversely through the casing and. at opposite sides of the rod, theends of said armsbeing bent. to angular position in engagement With theouterperiphery of the casing. o

.In testimony whereof I hereunto affix" my signature o o TELESP HOREBABIN.

